Ore granulator and pulverizer



No. 608,700. Patented Aug. 9, I898. J. M. MONTGOMERY.

ORE GBANULATOR AND PULVERIZER.

(Application filed July 28, 1897.)

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No. 608,700. Patented Aug. 9, I898. J. M. MONTGOMERY.

ORE GRANULATOR AND PULVERIZER.

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N0. 608,700. Patented Aug. 0, I090. J. M; MONTGOMERY.

ORE GRANULATOR AND PULVEBIZER.

(Application filed July 28, 1891) (No Model.)

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JOHN MILTON MONTGOMERY, OF' BUTTE, MONTANA.

ORE GRANULATOR AN D PU LVERIZER.

SPECIFICATION forming part of Letters Patent No. 608,700, dated August 9, 1898.

Application filed July 28, 1897.

T aZZ whom it may concern:

Be it known that 1, JOHN MILTON MONTGOM- ERY, a citizen of the United States, residing at Butte, in the county of Silver Bow and State of Montana, have invented certain new and useful Improvements in Ore Granulators and Pulverizers; and I do declare the following to be a full, clear, and exact description of the invention such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an ore granulator and pulverizer; and the object is to simplify the construction and increase the efficiency of the same, as will be hereinafter more fully described, and particularly pointed out in the claim.

In the accompanying drawings the same reference characters indicate the same parts of the invention.

Figure 1 is a longitudinal section of my improved ore granulator and pulverizer. Fig. 2 is a top plan view of the same with the hopper removed. Fig. 3 is a side elevation.

1 represents an annular casing provided with an annular flaring screen 2 and a correspondingly-formed trough 3,which is approxt mately horizontal, with the exception of its discharge-spout 1. The casing or frame 1 is provided with a removable central tubular standard 5, in which is mounted a removable bushing 6, through which the vertical driving-shaft 7 passes. The lower end of this vertical driving-shaft is stepped in a shoe 8, and it carries an inverted bevel-gear 9, which receives its motion from a bevel-pinion 10, mounted on a horizontal shaft 11, which may be driven in any suitable manner to rotate the vertical shaft 7.

12 represents an annular concentric semicircular bed formed integral with the casing 1, and 13 represents a correspondiugly-formed bed and forms the path for the crushers to travel in.

14: represents a depending sleeve keyed to the upper end of the shaft 7, and its lower end encompasses the shaftbearing in the bushing 6 to protect it from grit. The lower end of the sleeve 14 is provided with two oppositely-disposed horizontal arms 15 and 16,

which carry at their outer ends the boxes 1'7 17, in which are secured the inner ends of the Serial No. 646,24t7. (No model.)

horizontal shafts 18 18, on the outerends of which are mounted the pushing-wheels 19 19. "These wheels are provided with a series of cylindrical rods 20 20,'arranged in an annular series in the h'ubin said pushing-wheels to encompass the shaft 18, so as' to form an antifriction-bearingin said pushing-wheels on said shafts. r

21 21 represent metallic spheres,,the periphery of which corresponds to the semicircular groove in the shoe 13, and as the shaft 7 is rotated the arms 15 16 carry the'wheels 19 around with them in the same horizontal plane, and the forward portion of the wheels 19 bears against the contiguous'surfaces of the spheres to cause them to travel around the groove in the shoe. 1

22 represents a scraper fixed to the outer end of the arm 15, and its lower edge conforms to the groove in the shoe around which it travels to agitate the ore that is being treated. A similar scraper (not shown) is also fixed in the same manner to the opposite arm 16.

A second scraper 23 is adjustably secured by means of the bolts 24 in the slotted end of a spring-arm 25, fixed to the outer ends of the arm 15.- These latter scrapers have concave edges, which correspond to the periphery of the spheres into whose path they project, and their office is to remove any of the granulated ore that may adhere to the spheres.

. As shown in Fig. 1, the spheres are com posed of a globular cast-iron shell 26, the interior of which is filled with a lead core 27, so as to increase their weight and to insure their effectiveness within a comparatively small compass. I

28 represents an annular hopper fixed to the upper end of the sleeve 14, and it is provided with a conical sheet-metal bottom 2'9, which terminates in an annular vertical flange 30, which is secured to said conical bottom 29 by means of the bracket-knees 31 31 in such a manner as to provide an annular discharge opening for the contents between the outer edge of the-bottom 29 and the lower edge of the flange immediately over the annular screen 2. p A supply-spout 32 is fixed above thehopper, through which the material is fed to the mill.

33 represents a trough arranged on the out side of and concentric with the trough 3, (for convenience sake shown only in Fig. 3,) and when the ore is distributed by the revolving conical bottom of the hopper the refuse talc and lighter foreign matter rise to the surface of the wash-Water in the trough 3 and overflow into said trough 33 and are washed off and separated from the ore, and heavier matter, which naturally sinks to the bottom of the Water in the trough 3, is carried off by this trough 3.

The operation of the device is as follows: Motion being imparted to the shaft 7, the arms and 16 carry the horizontal shafts 18 18 around With them,causin g the pushing-Wheels 19 19 to impinge on the periphery of the spheres, so as to cause them to rotate on their oWn axis and also in the horizontal plane of the shoe.13, thus grinding, granulating, and pulverizing the ore. The finer portion of the comminuted ore is crowded out of the shoe by the action of the spheres, and this ore is then forced through the screen 2, and it falls into the trough 8, which contains running Water to carry the pulverized ore around and discharge it through the spout 4.

Although I have specifically described the construction and relative arrangement of the several elements of my invention, 1 do not desire to be confined to the same, as such changes or modifications may be made as will clearly fall within the scope of my invention without departing from the spirit thereof.

Having thus fully described my invention,

what I claim as new and useful, and desire to secure by Letters Patent of the United States,

In combination with the frame or casing 1, the vertical shaft '7, centrally journaled therein, the removable shoe 13 located in said frame concentric with said vertical shaft, the annular screen-frame 2, and the annular water-trough 3 encompassing said screenframe, the vertical driving-sleeve 14 fixed to the upper end of said shaft 7 and provided with the oppositely-disposed horizontal arms 15 and 16, the shafts 18 18 fixed in the outer ends of said arms, the pushing-wheels 19 journaled on the outer ends of said shafts, the crushing-spheres 21 located in the path of said wheels, a spring-actuated scraper 23 fixed to the arm 15 and projecting into the path of the spheres, a scraper 22 also fixed to the arm 15 and having its free end projecting into and adapted to travel in the groove in said shoe 13, and the rotating hopper 28 fixed to the upper end of said driving-sleeve, and provided with a conical bottom 29 from Which the material to be operated upon shall be discharged by gravity into the annular screenframe 2, substantially as and for the purpose set forth.

In testimony whereof I hereunto aflix my signature in presence of two witnesses.

JOHN MILTON MONTGOMERY.

Witnesses:

EDWARD LYNCH, D. W. MOINTYRE. 

